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Molecular And Interfacial Science


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#1 Dudesons123

Dudesons123

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Posted 27 September 2018 - 07:25 AM

Hi Engineers and Scientists,

 

I have made an attempt on a dimensional analysis question.

 

Consider the meniscus formed by a liquid of density rho and surface tension gamma within a capillary of radius r.  Perform the dimensional analysis to determine the key dimensionless groups in this system. I did dimensional analysis on these 3 terms but it didn't give a dimensionless group. I tried adding gravity and came up with the characteristic length of the meniscus but this has a unit of length.

 

L = (gamma/rho*g)^0.5

 

I am hoping someone can tell me or give me some hints to help me identify the key dimensionless groups of this system.

 

Thanks.






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